Home / 39,413.32-59,128.26-13,120.12

Finding the Fourth Proportional to 39,413.32, 59,128.26 and 13,120.12

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Solution

The fourth proportional to 39,413.32, 59,128.26 and 13,120.12 is: 19,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,413.32 : 59,128.26 = 13,120.12 : x
  2. Step 2: Convert to fraction form
    39,413.32/59,128.26 = 13,120.12/x
  3. Step 3: Cross multiply
    39,413.32x = 59,128.26 × 13,120.12
  4. Step 4: Simplify right side
    39,413.32x = 775,769,866.59
  5. Step 5: Solve for x
    x = 775,769,866.59/39,413.32
  6. Step 6: Final answer
    x = 19,682.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.